Pseudoclappia

Rydberg

J. Wash. Acad. Sci. 13: 288. 1923.

Etymology: Greek pseudo, resembling but not equaling, and generic name Clappia
Treatment appears in FNA Volume 21. Treatment on page 252. Mentioned on page 251.
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 TaxonIllustrator 
FNA21 P40 Clappia suaedifolia.jpegClappia suaedifolia
Pseudoclappia arenaria
Jaumea carnosa
Yevonn Wilson-Ramsey
Linda Ann Vorobik
Yevonn Wilson-Ramsey

Subshrubs or shrubs, 5–40+ cm (fleshy). Stems mostly erect, branched from bases. Leaves cauline, mostly alternate (proximal opposite); sessile; blades linear to filiform (terete), margins entire, faces glabrous. Heads radiate, borne singly. Involucres obconic, 4–6 mm diam. Phyllaries persistent, 12–16 in 2+ series (lanceolate to linear, subequal to unequal, succulent to membranous). Receptacles convex, usually epaleate, rarely with scattered, slender scales. Ray-florets 2–11, pistillate, fertile; corollas yellowish. Disc-florets 20–40+, bisexual, fertile; corollas yellowish, tubes shorter than or about equaling narrowly funnelform throats, lobes 5, deltate. Cypselae ± columnar (obscurely 10–12-ribbed, sparsely hairy on ribs); pappi ca. 50 fine to coarse, nearly smooth to barbellate, unequal bristles or setiform scales in 3–4 series (all ± connate at bases). x = 18.

Distribution

sw United States, n Mexico

Discussion

Species 2 (2 in the flora).

Selected References

None.

Key

1 Rays 2–4+, laminae 5–11 mm; cypselae ca. 3 mm; pappi 4–6 mm Pseudoclappia arenaria
1 Rays 6–11, laminae 10–13 mm; cypselae ca. 4 mm; pappi 8–10 mm Pseudoclappia watsonii
... more about "Pseudoclappia"
not tailed +, rounded +  and obtuse +
connate +  and distinct +
subequal +
scarious +
usually ovate +  and lanceolate +
usually deltate +  and lanceolate +
spiciform +, racemiform +, paniculiform +  and corymbiform +
indeterminate +  and determinate +
John L. Strother +
Rydberg +
decurrent +
compound +  and simple +
linear;filiform +
winged;ribbed;winged;ribbed +
tuberculate +  and rugose +
barbellulate +  and barbellate +
fertile +  and bisexual +
fertile +  and bisexual +
sw United States +  and n Mexico +
Greek pseudo, resembling but not equaling, and generic name Clappia +
pistillate +, staminate +  and neuter +
winged +  and beaked +
dispersed +
indeterminate +
homogamous +  and heterogamous +
each +  and sessile +
0.4 cm4 mm <br />0.004 m <br /> (0.6 cm6 mm <br />0.006 m <br />) +
deltate +
2-carpellate +
nearly smooth +  and barbellate +
persistent +
12 +  and 16 +
J. Wash. Acad. Sci. +
bearing subulate enations +, hairy +  and bristly +
12 +  and 25 +
setiform +
unequal +
exalbuminous +
appendaged +  and truncate +
hirsutulous +  and glabrous +
papillate +
Compositae +
Pseudoclappia +
Asteraceae (tribe Heliantheae) subtribe Clappiinae +
perennial +, biennial +  and annual +
shrub +  and subshrub +